Due to small cache size, MEMBER cache gets invalidated resulting in performance degradation due to multiple hits to the database.

Due to small cache size, MEMBER cache gets invalidated resulting in performance degradation due to multiple hits to the database.

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Article ID: KB0091535

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Updated On:

Products Versions
TIBCO Collaborative Information Manager -
Not Applicable -

Description

Resolution:
Description:
============
When the number of users increase in the TIBCO Collaborative Information Manager (CIM) and the cache size is limited, each and every consecutive click on Browse and Search for each repository causes a delay in the search field to be displayed. This happens as the cache size for MEMBER is limited and CIM is unable to load entire member information. When the user clicks on Browse and Search, CIM is unable to find the entire member in the cache, so it tries to fetch the information from the database and load into MEMBER Cache.

Environment:
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TIBCO Collaborative Information Manager (CIM) 8.2.X

Symptoms:
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User clicks on the Browse and Search Menu resulting in a delay to display all of the search field on UI.

Cause:
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Low configuration of MEMBER cache

Resolution:
==========
Increasing  Cache Size(Increasing limit) for MEMBER Cache as follow resolves this issue.  Make changes to &ltMQ_HOME>/config/CacheConfig.xml

&ltCache>
    &ltName&gtMEMBER</Name>
    &ltType&gtdistributed</Type>
    &ltReplicationCount></ReplicationCount>
    &ltSingleByteObjectSize&gt18555</SingleByteObjectSize>
    &ltMultiByteObjectSize&gt27823</MultiByteObjectSize>
    &ltLimit&gt2.0</Limit>
</Cache>

Issue/Introduction

Due to small cache size, MEMBER cache gets invalidated resulting in performance degradation due to multiple hits to the database.